Ha is a Latin alphabet rendition of the Korean family name "하", also often spelled Hah or less commonly as Har.
Jinju Ha clan is divided into Shirang branch (시랑공파, 侍郞公波) founded by Ha Gong-jin (하공진, 河拱辰), Sajik branch (사직공파, 司直公波) founded by and Ha Jin (하진, 河珍), and Dangye branch (단계공파, 丹溪公波) founded by Ha Seong (하성, 河成).
All of the three founders served as the officials during Goryeo era.
Ha Il-cheong passed the civil official examination in 1570 and later became the governor.
Aneum Ha clan trace its founder to Ha Cheon-jo (하천조, 河千朝), who passed the civil official examination in 1212 during Goryeo era and served as the country's official.